Centessa investors report zero current share ownership
Centessa Pharmaceuticals plc is the subject of an amended Schedule 13G filing in which a group of affiliated investment entities managed by Medicxi report their current ownership position.
Centessa Pharmaceuticals plc is the subject of an amended Schedule 13G filing in which a group of affiliated investment entities managed by Medicxi report their current ownership position. The filing covers several Jersey-based limited partnerships and limited companies, collectively referred to as the Medicxi Funds and related managing entities.
As of June 30, 2026, the Reporting Persons state that they beneficially own 0 Ordinary Shares of Centessa Pharmaceuticals plc, representing 0.0% of the outstanding class. They also report having no sole or shared power to vote or dispose of any Ordinary Shares. The certification section is executed on behalf of each Reporting Person by Francois Chesnay in various director and manager capacities.
Positive
None.
Negative
None.
Key Figures
Beneficial ownership:0 Ordinary SharesOwnership percentage:0.0%Sole voting power:0+3 more
6 metrics
Beneficial ownership0 Ordinary SharesBeneficially owned by all Reporting Persons as of June 30, 2026
Ownership percentage0.0%Percent of class of Centessa Ordinary Shares as of June 30, 2026
Sole voting power0Number of shares over which Reporting Persons have sole power to vote
Shared voting power0Number of shares over which Reporting Persons have shared power to vote
Sole dispositive power0Number of shares over which Reporting Persons have sole dispositive power
Shared dispositive power0Number of shares over which Reporting Persons have shared dispositive power
Key Terms
beneficially own, sole power to vote, shared power to vote, sole power to dispose, +2 more
6 terms
beneficially ownregulatory
"none of the Reporting Persons may be deemed to beneficially own any Ordinary Shares"
Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.
sole power to voteregulatory
"Number of shares as to which the person has | (i) Sole power to vote"
shared power to voteregulatory
"(ii) Shared power to vote or to direct the vote: 0"
sole power to disposeregulatory
"(iii) Sole power to dispose or to direct the disposition of: 0"
shared power to disposeregulatory
"(iv) Shared power to dispose or to direct the disposition of: 0"
Reporting Personsregulatory
"are sometimes individually referred to herein as a "Reporting Person" and collectively as the "Reporting Persons""
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What does the Schedule 13G/A filing report for Centessa Pharmaceuticals (CNTA)?
The filing reports that the Medicxi-affiliated Reporting Persons beneficially own 0 Ordinary Shares of Centessa Pharmaceuticals, representing 0.0% of the class as of June 30, 2026, with no voting or dispositive power over any shares.
Who are the Reporting Persons in the Centessa (CNTA) Schedule 13G/A?
The Reporting Persons include multiple Jersey entities, such as Medicxi Growth I LP, Medicxi Ventures I LP, Medicxi Secondary I LP, their related co-invest and GP entities, and Medicxi Ventures Management (Jersey) Limited as manager of the Medicxi Funds.
What ownership percentage do the Medicxi Funds report in Centessa (CNTA)?
The Medicxi Funds and related entities report owning 0.0% of Centessa’s Ordinary Shares as of June 30, 2026. They list 0 shares beneficially owned and no sole or shared power to vote or dispose of any shares.
What class of securities is covered for Centessa (CNTA) in this Schedule 13G/A?
The filing covers Ordinary Shares of Centessa Pharmaceuticals plc with a nominal value of 0.002 per share, identified by CUSIP 152309100. The Reporting Persons state they have no beneficial ownership of this class.
What is the as-of date for the ownership information in the Centessa (CNTA) Schedule 13G/A?
The ownership information is stated as of June 30, 2026. As of that date, the Reporting Persons report 0 shares beneficially owned, corresponding to 0.0% of the outstanding Ordinary Shares of Centessa Pharmaceuticals.
Who signed the Centessa (CNTA) Schedule 13G/A on behalf of the Reporting Persons?
The filing is signed by Francois Chesnay in multiple capacities, including Director and Director of Manager for the relevant Medicxi entities, with signature dates of August 4, 2026 for each signature block.
(i) Medicxi Growth I LP ("Growth I"), a Jersey limited partnership;
(ii) Medicxi Growth Co-Invest I LP ("Growth Co-Invest I"), a Jersey limited partnership;
(iii) Medicxi Growth I GP Limited ("Growth I GP"), a Jersey limited liability company, which
is the sole managing general partner of Growth I and Growth Co-Invest I;
(iv) Medicxi Ventures I LP ("Ventures I"), a Jersey limited partnership;
(v) Medicxi Co-Invest I LP ("Co-Invest I"), a Jersey limited partnership;
(vi) Medicxi Ventures I GP Limited ("Ventures I GP"), a Jersey limited liability company,
which is the sole managing general partner of Ventures I and Co-Invest I;
(vii) Medicxi Secondary I LP ("Secondary I"), a Jersey limited partnership;
(viii) Medicxi Secondary Co-Invest I LP ("Secondary Co-Invest I" and, together with Growth I, Growth Co-Invest I, Ventures I, Co-Invest I and Secondary I, the "Medicxi Funds"), a Jersey limited partnership;
(ix) Medicxi Secondary I GP Limited ("Secondary I GP"), a Jersey limited liability company, which is the sole managing general partner of Secondary I and Secondary Co-Invest I; and
(x) Medicxi Ventures Management (Jersey) Limited ("Medicxi Manager"), a Jersey limited liability company, which is the sole manager of the Medicxi Funds.
Growth I, Growth Co-Invest I, Growth I GP, Ventures I, Co-Invest I, Ventures I GP, Secondary I, Secondary Co-Invest I, Secondary I GP and Medicxi Manager are sometimes individually referred to herein as a "Reporting Person" and collectively as the "Reporting Persons."
(b)
Address or principal business office or, if none, residence:
The address of the principal business office of each of the Reporting Persons is c/o CSC Fund Services (Jersey) Limited, 44 Esplanade, St. Helier, Jersey JE4 9WG.
(c)
Citizenship:
See Item 2(a).
(d)
Title of class of securities:
Ordinary Shares, nominal value 0.002 per share
(e)
CUSIP No.:
152309100
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
As of June 30, 2026, none of the Reporting Persons may be deemed to beneficially own any Ordinary Shares of the Issuer.
(b)
Percent of class:
0.0 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
0
(ii) Shared power to vote or to direct the vote:
0
(iii) Sole power to dispose or to direct the disposition of:
0
(iv) Shared power to dispose or to direct the disposition of:
0
Item 5.
Ownership of 5 Percent or Less of a Class.
Not Applicable
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
Not Applicable
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
